Santorum on the Hill but won't talk 2016

11/26/12 9:44 PM EST

Mum’s the word from former Sen. Rick Santorum about a potential 2016 presidential bid.
The Pennsylvanian Republican returned to his old stomping grounds on Capitol Hill Monday but shrugged off questions about whether he might launch another bid for president in four years.
“I haven’t made any decisions about 2016," he said. "But thank you for asking.”
Santorum attended an afternoon press conference to oppose a United Nations treaty regarding people with disabilities. He appeared with wife Karen, and three of their seven children, including their youngest, Isabella, who has trisomy 18, a rare genetic condition.
Santorum, along with Sen. Mike Lee (R-Utah) and other critics, said the convention could allow domestic courts to render decisions involving the care of children with disabilities, overriding the wishes of parents.
“This is a direct assault on us and our family to hand over to the state the ability to make medical determinations and see what is in the best interest of the child,” Santorum said.
Thirty-six senators have signed on to a letter by Lee opposing Senate consideration of the convention during the lame-duck session. Thirty-four votes are enough to block ratification of the treaty.